JP2001276125A - Disposable wearing article for excrement treatment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposable wearing article for excrement treatment capable of retaining soft feces far away from the skin. SOLUTION: In this disposable wearing article 1, an excrement-retaining element 11 comprising at least 60 wt.% of continuous fibers 16 are formed in an excrement retaining part 4. The continuous fibers 16 are continued between the mutually parallel first surface 13 and second surface 14 of the retaining element 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable wearing article suitable for treating excretions such as urine, stool, menstrual blood and the like.

[0002]

2. Description of the Related Art It has been well known that in this kind of wearing article, in order to absorb liquid excrement such as urine, a liquid-absorbent core made of ground pulp or ground pulp and a superabsorbent polymer is used. ing. In addition, in order to absorb and treat viscous excrement such as loose stool and menstrual blood, a large opening should be formed in the topsheet covering the core, and the excrement passing through the opening should be held by the core Is also well known.

[0003]

In the above-mentioned conventional wearing article, it is easy to hold absorbed urine at a position far from the skin, but to hold loose stool and menstrual blood at a position far from the skin. It is difficult. Loose stool and menstrual blood containing solids and having high viscosity are difficult not only to enter the inside of the core through the interstices between the fibers of the pulverized pulp and the interstices of the superabsorbent polymer particles, but also to block the openings in the topsheet. Because it is easy.
Therefore, in such a worn article, the viscous excrement is prone to peeling and rash due to long contact with the skin.

Accordingly, an object of the present invention is to improve a disposable wearing article for treating excrement so that viscous excrement can be held at a position far from the skin.

[0005]

In order to solve the above problems,
An object of the present invention is a disposable wearable article for excrement disposal, which has a skin contact side and a non-skin contact side opposite to the skin contact side, and has an excrement holding portion formed between the both sides. It is.

The features of the present invention in such a worn article are as follows. In the holding unit,
An excrement holding element comprising at least 60% by weight of continuous fibers is included. The holding element has a first surface located on the skin contact side and a second surface located on the non-skin contact side and parallel to the first surface. At least 50% of the continuous fibers extend continuously between a 1 cm square on the first surface and the second surface located immediately below the first surface, and are welded and mechanically entangled. They are entangled with one another. Between the continuous fibers, along the fibers, from the first surface to the second
A space extending to the surface is formed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The sanitary napkin will be described as an example of a disposable wearing article for treating excrement according to the present invention, and the details of the invention will be described below.

FIGS. 1 and 2 are a partially cutaway perspective view of the sanitary napkin 1 and a sectional view taken along the line II-II. Napkin 1
Is a liquid permeable surface sheet 2 forming an outer surface on the skin contact side,
And a liquid-impermeable back sheet 3 forming an outer surface on a non-skin contact side opposite to the skin contact side, and a menstrual blood holding portion 4 between the two sheets 2 and 3.

The topsheet 2 is made of a nonwoven fabric or a plastic film, and has a large number of through-holes 6 having a diameter sufficient to allow menstrual blood to pass through. However, when the topsheet 2 is made of a nonwoven fabric and the fiber gap of the nonwoven fabric is sufficiently large, the gap can be replaced with the through hole 6.

The back sheet 3 is made of a plastic film,
More preferably, it is made of a breathable liquid-impervious plastic film, and the outer surface is bonded with a non-woven fabric to change the touch to a cloth-like one, or partially applied with an adhesive to the crotch region of the shorts worn. Sometimes it can be fixed. The back sheet 3 extends outward from the periphery of the menstrual blood holding section 4 together with the top sheet 2 and overlaps at the extending portions, and is joined by welding or bonding.

The menstrual blood holding section 4 has an upper layer 11 and a lower layer 12. The upper layer 11 is a first excrement holding element,
It contains at least 60% by weight of continuous fibers 16 and preferably has a basis weight of 50 to 150 g / m ² and a thickness of 5 to 15 mm. The upper layer 11 has an upper surface 13 in contact with the inner surface of the topsheet 2 and a lower surface 14 in contact with the lower layer 12, and is used mainly for retaining solids and viscous liquid components in excrement. . The lower layer 12 is a second excrement holding element, and is a pulp fiber aggregate made of ground pulp or a mixture of ground pulp and superabsorbent polymer particles, and has a basis weight of 30 to 120 g / m ² . It is mainly used to absorb water in the excrement.

FIG. 3 is a partial perspective view of the upper layer 11,
It is depicted as a rectangular parallelepiped having an upper surface 13 and a lower surface 14. On the upper surface 13, only the upper end of the continuous fiber 16 is shown as a small point, and a portion extending downward from the upper end is omitted. On the other hand, on the side surface of the rectangular parallelepiped, a state in which the continuous fiber 16 extends vertically up and down is illustrated. In a preferred embodiment of the present invention, the multiple continuous fibers 16 present inside the illustrated rectangular parallelepiped have their upper ends substantially coplanar to define an upper surface 13 and the lower ends also substantially coplanar. Thus, a lower surface 14 parallel to the upper surface 13 is defined. The fibers 16 in this state are the upper and lower surfaces 13,
14 is continuous. In addition, continuous fibers 16 having an upper end in a square having a side of 1 cm on the upper surface 13
At least 30%, and more preferably at least 50% of them are in the lower surface 14 whose lower end is located directly below the square of the upper surface 13. For example,
500 to 1 continuous fibers 16 in a 1 cm square
Of the 500 upper layers 11, at least 50% of them, that is, about 250 to 750, extend to the lower surface 14 located immediately below the square of the upper surface 13. The continuous fibers 16 are entangled by being mechanically entangled with each other and / or by being welded to each other, and maintain the sheet-like form as the upper layer 11. The continuous fiber 16 has a fineness of 1 to 50 dtex, more preferably 2 to 40 dtex. In addition to using a thermoplastic synthetic fiber which has been subjected to a hydrophilic or hydrophilic treatment, a hydrophobic thermoplastic synthetic fiber or a chemical fiber may be used. , Natural fibers and the like can also be used. The upper layer 11 may contain, in addition to the continuous fibers 16, up to 40% by weight of short fibers such as superabsorbent polymer particles and pulp fibers. The distance between the upper and lower surfaces 13 and 14 may be uniform throughout the upper layer 11 or may be partially different. In this sense, the upper and lower surfaces 13 and 14 are not parallel to each other. It should be parallel without it.

In the napkin 1 thus formed, menstrual blood that has passed through the through holes 6 of the topsheet 2,
Fiber gap 2 extending in the vertical direction like fiber 16
1, the solid and non-solid components in menstrual blood can reach near the lower end of the continuous fiber 16. Further, non-solid components, particularly moisture, are absorbed by the lower layer 12 further below. With such a napkin 1, the upper layer 11 is used so that neither solid nor non-solid in menstrual blood comes into contact with the skin.
, The problem of unevenness and rash due to menstrual blood is eliminated.

The aggregate of continuous fibers 16 used as the upper layer 11 is formed by, for example, opening a tow made of thermoplastic synthetic fiber until the gap between the fibers becomes a required size, and then heat-treating the tow. By welding at the contact points with each other and stabilizing the tow shape after opening. If the fibers forming the tow are crimped or crimped by heat treatment, the fibers will form a relatively large space between the vertically extending fibers during heat treatment. Are entangled with each other or welded to each other, so that a fiber aggregate preferable for the present invention can be obtained. Preferred examples of such thermoplastic synthetic fibers include eccentric sheath-and-core type composite fibers and side-by-side type composite fibers.

In the napkin 1, the upper layer 11, that is, the aggregate of continuous fibers 16, which is an element suitable for retaining solid components and viscous components in menstrual blood, is made of a viscous material such as a disposable diaper or a pad for soft stool treatment. It can also be used as an element to capture and retain loose stool.

FIGS. 4 and 5 are perspective views of a soft stool processing pad 31 showing such an example of use of the aggregate of continuous fibers 16,
It is the VV line sectional view. The pad 31 has a rear end 33
From the front end portion 32 to the front end portion 32, and has a top sheet 36 located on the skin contact side and a back sheet 37 located on the non-skin contact side. Has a large number of through holes 38 through which loose stool can pass. The pad 31 is positioned inside a disposable diaper, brief pants or the like with the front end 32 facing downward, and can be applied to the periphery of the anus to capture loose stool. On the inner surface side of the top sheet 36, there is located a cushion sheet 41 in which crimped conjugate fibers, which are short fibers, are randomly gathered without any specific direction. On the inner surface side of the back sheet 37, the continuous fibers 16 are arranged. Of the cushion sheet 41 and the holding element 42
A space portion 43 that can accommodate loose stool is formed between the space portion and the space portion. In the pad 31, the excrement holding section 4 is formed by the cushion sheet 41, the holding element 42, and the space 43.
0 is formed. A hook member 47 of a mechanical fastener including a hook member and a loop member is attached to an outer surface of the back sheet 37.

In the pad 31, the cushion sheet 4
1 has a through hole 44 formed so as to match the shape and position of the through hole 38, and is in close contact with the inner surface of the topsheet 36. The sheet 41 gives the pad 31 a cushioning property, and can also accommodate loose stool in a fiber gap formed by randomly collected short fibers.

The holding element 42 has a structure similar to that of the upper layer 11 in FIG. 2, and most of the continuous fibers 16 extend in the vertical direction in FIG. 5, and the gaps 21 formed between the fibers 16 are also formed. It extends vertically. The loose stool that has passed through the through holes 38 and 44 reaches the holding element 42,
1 and moves in the direction of the back sheet 37 to be far away from the pad wearer's skin.

In the holding element 42 used in this way,
The fineness of the continuous fibers 16 is in the range of 1 to 50 dtex, more preferably 2 to 40 dtex, and the basis weight is 20 to 500 g /
m ² , more preferably 30 to 400 g / m ² , and the thickness of the holding element 42 is 3 to 50 mm, more preferably 5 to 40 mm. In the case of this holding element 42, if a thermoplastic synthetic fiber or a water-absorbing chemical fiber subjected to hydrophilic or hydrophilic treatment is used for the continuous fiber 16,
In addition to retaining the solid and non-solid content of loose stools, it also allows urine to be absorbed.

In the present invention, the upper layer 11 and the holding element 4
The excrement holding element mainly composed of continuous fibers 16 suitable for holding a solid content or a viscous liquid component is exemplified by an aggregate of pulp fibers having water absorption and a crimp having cushioning properties. In addition to being able to be used in combination with a second excrement holding element composed of an aggregate of short fibers and the like to form the excrement holding portions 4 and 40 with these elements, the continuous fiber 16 is mainly used. Only the excrement holding element is covered with an appropriate sheet through which loose feces and menstrual blood can pass to form an excrement holding section, which can be used as a disposable wearing article for excrement disposal.

[0021]

According to the present invention, the disposable wearing article for excrement disposal has a large number of continuous fibers in which the excrement holding element included therein extends continuously between the upper surface and the lower surface which are parallel to each other. Since there is a fiber gap extending between the upper and lower surfaces along the continuous fiber, the excrement moves from the upper surface to the lower surface through the fiber gap and moves far away from the skin of the article wearer, causing unevenness or rash. Nothing.

[Brief description of the drawings]

FIG. 1 is a perspective view of a wearing article (sanitary napkin).

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a partial view of a holding element (upper layer).

FIG. 4 is a perspective view of a pad showing an example of the embodiment.

FIG. 5 is a sectional view taken along line VV of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wearing article (sanitary napkin) 2 Skin contact surface (top sheet) 3 Non-skin contact surface (back sheet) 4 Holding part 11 Holding element (upper layer) 13 First surface (upper surface) 14 Second surface (lower surface) Reference Signs List 16 continuous fiber 31 worn article (pad) 32 skin contact surface (top sheet) 33 non-skin contact surface (back sheet) 40 holding section 42 holding element

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) D04H 1/42 F term (Reference) 3B029 BA05 BA14 BA18 BB05 BC05 4C003 AA06 AA12 AA16 4C098 AA09 CC03 CC05 CC08 CC10 DD05 DD09 4L047 AA08 AA28 AB03 BA01 BA08 CA02 CA06 CB07 CC04 CC05

Claims (6)

[Claims] 1. A disposable wearable article for treating excrement, comprising a skin contact side and a non-skin contact side opposite thereto, wherein an excretion holding portion is formed between the both sides. The part includes an excrement holding element in which the continuous fiber occupies at least 60% by weight, and the holding element is located on the first surface located on the skin contact side and on the non-skin contact side. A second surface parallel to the first surface, wherein at least 30% of the continuous fibers have a diameter of 1 cm on the first surface.
It extends continuously between the four sides and the second surface located immediately below the four sides, and entangles with each other by either welding or mechanical entanglement. A space extending from the first surface to the second surface. 2. The wearing article according to claim 1, wherein the continuous fiber is a thermoplastic synthetic fiber. 3. The holding part includes a second excrement holding element that includes one of ground pulp and superabsorbent polymer particles and contacts the holding element from the non-skin contact side. The wearing article according to claim 1 or 2, wherein: 4. The wear according to claim 1, further comprising a liquid-permeable top sheet on the skin contact side and a liquid-impermeable back sheet on the non-skin contact side. Goods. 5. The wearing article according to claim 2, wherein the thermoplastic synthetic fiber is a crimped conjugate fiber. 6. The wearing article according to claim 2, wherein the thermoplastic synthetic fiber is obtained by opening a tow made of the thermoplastic synthetic fiber.